The U.S. Navy program to improve the reliability and seaworthiness of its Hovercrafts is moving forward. As first reported by Design News, Navy engineers are changing the technology used to attach the rubber-pleated skirts that contain high-pressure air that moves the craft above water. Newly developed fasteners can be replaced with regular tools, speeding replacement of damaged skirts. The new TineLok system has one or more tines that work in conjunction with longitudinal bolt thread channels to prevent counter rotation and loosening. The skirt manufacturer, Avon Rubber, has sent a purchase order for the first Navy Hovercraft replacement program. Orders to cover the rest of the fleet are expected to begin in May. There are 100 skirts on each Hovercraft and maintenance costs will be cut 25 to 30 percent. The first fasteners are all stainless: the nut, the tine and bolt. Tests are also being conducted on plastic versions that cut weight by 75 percent. Nuts and bolts are made from PEEK and the tine is made from glass-reinforced nylon. Rod is being machined for the sample run. The Army is looking at the technology for some of its weapons systems. It may also have applications for fastening of lighting in various applications.
Listen to a podcast on the new Hovercraft fastening technology.
Two new technologies from Stratasys, created in partnership with Boeing, Ford, and Siemens, will bring accurate, repeatable manufacturing of very large thermoplastic end products, and much bigger composite parts, onto the factory floor for industries including automotive and aerospace.
These new 3D-printing technologies and printers include some that are truly boundary-breaking: a sophisticated new sub-$10,000, 10-plus materials bioprinter, the first industrial-strength silicone 3D-printing service, and a clever twist on 3D printing and thermoforming for making high-quality realistic models.
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies.
You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived.
So if you can't attend live, attend at your convenience.